"The sign at the [BP] gas station said $3.39, which doesn’t sound too bad. When folks filled up at the pump though, it rang up as 33-cents a gallon. As you can imagine, it didn’t take long for lines to form at the gas station. In fact, the scene became pretty crazy and police had to be called.

"This wasn’t a case of generosity. It was actually a mistake. …An employee accidentally entered 33.9 cents instead of 3.39 into the pumps. The deal didn’t last long as the station quickly ran out of regular unleaded."